1. Synthesis of nitrogen-doped polymeric resin-derived porous carbon for high performance supercapacitors.
- Author
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Zhang, Jinliang, Zhang, Wenfeng, Han, Minfang, Pang, Jie, Xiang, Yu, Cao, Gaoping, and Yang, Yusheng
- Subjects
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POLYMERIC composites , *RESIN custom compounds , *SUPERCAPACITOR performance , *DOPING agents (Chemistry) , *NITROGEN compounds - Abstract
A series of nitrogen-doped (N-doped) polymeric resin-derived porous carbons (NPCs) have been fabricated by a direct carbonization of the mixture of polymeric resin and potassium acetate. The polymeric resin serves as carbon and nitrogen precursor and potassium acetate as activation agent. The prepared carbons have a high specific surface area of 1946 m 2 g −1 and high N content of approximately 6.37 at%. The NPC-700 sample exhibits a highest specific capacitance of 312 F g −1 at 0.5 A g −1 in a three-electrode system in 7 M KOH. When tested with a two-electrode system, the optimal sample NPC-800 shows a good rate performance (capacitance retention of 73% in the range of 0.05 A g −1 to 20 A g −1 ) and high cycling stability (96.5% retention after 5000 cycles at 2 A g −1 ). The easy preparation and superior electrochemical performances render the NPCs a promising alternative electrode material for supercapacitor. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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